Canon PowerShot A100, Service Manual

Page: 53 / 129

3-1
CHAPTER 3. REPAIR INSTRUCTION
Fig. 3-1 Precaution on flash high tension circuit
1. Before Starting the Repair Work
Be sure to read the following precaution before starting the repair work.
1.1 Precaution on Flash High Tension Circuit
• When the FRONT COVER UNIT and REAR COVER UNIT are removed, be sure to discharge the main
capacitor.
(Discharging resistor : 1 k
Ω
, approx. 5 W.)
• First contact the GND terminal of the main capacitor with the discharging resistor. Then contact the
positive terminal of the main capacitor.
CAUTION:
Be careful of electric shock because the circuit is the high tension circuit.
1.2 List of Tools
The following tools are used for the re-assembling during service.
(1) List of tools
New Name of tools Part No. Remarks
Screwdriver (Local Purchase)
Tweezers (Local Purchase)
Soldering iron (Local Purchase)
1.3 List of Supplies
The following supplies are used for the re-assembling during service.
(1) List of supplies
New Name of supplies Part No. Remarks
ADHESIVE TAPE SONY T4000 CY4-6012-000 Double-sided Tape
ADHESIVE TAPE 3M No.56 CY4-6018-000 Insulation Tape
DIA BOND No.1663G CY9-8129-000
Solder (Local Purchase)
FLASH UNIT
(1k /5W)
+ terminal
– terminal